Answer:
15
Explanation:
the atomic number is the number above the symbol. the number below is the atomic mass.
Answer: lithosphere (land), hydrosphere (water), biosphere (living things), and atmosphere (air).
Explanation: Hope this helps!!!
Answer:
Chemical energy changes into thermal energy and light energy
The electrical property of the membrane changes. There is a small undershoot in the membrane potential.
im not really sure but i think the answer is C (not 100% sure)
~batmans wife
